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| Data Sheet Features * * * * * * For broadband applications Typical 3dB bandwidth of 1 MHz High attenuation Single-ended operation Ceramic Surface Mount Package (SMP) Replaces Sawtek P/N 851545 (BW 3dB=1.5 MHz) Part Number 855738 70 MHz SAW Filter * Package Surface Mount 24.60 x 9.00 x 2.31 mm Pin Configuration Bottom View 12345 2.31 NOM. 2.62 MAX. 1.02 24.6 1.80 1.91 10 9 8 7 6 9.00 R0.5 2.31 3.53 x 4.83 1.02 Pin No. 5 10 1,2,3,4 6,7,8,9 Description Output Input Case Ground Case Ground Dimensions shown are nominal in millimeters All tolerances are 0.15mm except overall length 0.20mm and width +0.13/-0.20mm Body: Al2O3 ceramic Lid: Kovar, Ni plated Terminations: Au plating 0.5 - 1.0m, over a 2 - 6m Ni plating Subject to change or obsolescence without notice Rev A 23-May-2002 Page 1 of 5 Data Sheet Operating Temperature Range: (2) 0 to +70 oC Part Number 855738 70 MHz SAW Filter Electrical Specifications (1) Parameter (3) Center Frequency Minimum Insertion Loss Lower 1 dB Bandedge (4) Upper 1 dB Bandedge Lower 3 dB Bandedge (4) Upper 3 dB Bandedge Lower 40 dB Bandedge (4) Upper 40 dB Bandedge Amplitude Variation 69.35 - 70.65 MHz Phase Linearity 69.35 - 70.65 MHz Group Delay Variation 69.35 - 70.65 MHz Relative Attenuation (4) 10 - 68 MHz 72 - 110 MHz 110 - 118 MHz 118 - 124 MHz 124 - 133 MHz 133 - 200 MHz Source Impedance (5) Load Impedance (5) Substrate Material Notes: 1. 2. 3. 4. 5. Minimum 70.65 70.78 68.71 50 50 30 50 30 50 - Typical 70 21.6 69.30 70.70 69.18 70.81 68.74 71.26 0.64 2.4 97 64 60 35 66 37 66 50 50 Quartz Maximum 23 69.35 69.22 71.29 1 5 200 - Unit MHz dB MHz MHz MHz MHz MHz MHz dB p-p deg p-p nsec dB dB dB dB dB dB - All specifications are based on the test circuit shown below In production, devices will be tested at room temperature to a guardbanded specification to ensure electrical compliance over temperature Electrical margin has been built into the design to account for the variations due to temperature drift and manufacturing tolerances All attenuation measurements are measured relative to minimum insertion loss This is the optimum impedance in order to achieve the performance shown Test Circuit: Actual matching values may vary due to PCB layout and parasitics 330nH 10 5 50 270nH 50 Single-ended 50 1,2,3,4 6,7,8,9 Subject to change or obsolescence without notice Rev A 23-May-2002 Page 2 of 5 Data Sheet Part Number 855738 70 MHz SAW Filter Typical Performance (at +25oC) Subject to change or obsolescence without notice Rev A 23-May-2002 Page 3 of 5 Data Sheet 330nH 10 5 270nH Part Number 855738 70 MHz SAW Filter Matching Schematics 50 Single-ended 50 1,2,3,4 6,7,8,9 50 Marking PCB Footprint 8.84 SAWTEK 855738 XXXXXX ID dot Date code 9.19 1.95 1.22 .69 Date code is the day of the current year in Julian format, last digit of the year, and hour of the day This footprint represents a recommendation only Dimensions shown are nominal in millimeters 4.0 Tape and Reel 2.7 44.8 O330 ID dot 0.36 2.0 O1.5 A 1.75 20.2 40.4 25.6 44.0 O102 O20.2 O13.0 2.0 Direction of travel 0.20 2.6 Section A-A 9.39 12.0 R0.75 O1.5 A Dimensions shown are nominal in millimeters Packaging quantity: 1000 units/reel Subject to change or obsolescence without notice Rev A 23-May-2002 Page 4 of 5 Data Sheet Maximum Ratings Parameter Operating Temperature Range Storage Temperature Range Part Number 855738 70 MHz SAW Filter Symbol T Tstg Minimum 0 -40 Maximum +70 +85 Unit o o C C Warnings * * Electrostatic Sensitive Device (ESD) Avoid ultrasonic exposure Links to Additional Technical Information PCB Layout Tips S-Parameters Qualification Flowchart Soldering Profile Other Technical Information Sawtek's liability is limited only to the Surface Acoustic Wave (SAW) component(s) described in this data sheet. Sawtek does not accept any liability for applications, processes, circuits or assemblies which are implemented using any Sawtek component described in this data sheet. Contact Information PO Box 609501 Orlando, FL 32860-9501 USA Subject to change or obsolescence without notice Phone: +1 (407) 886-8860 Fax: +1 (407) 886-7061 Email: custservice@sawtek.com Web: www.sawtek.com Rev A Or contact one of our worldwide network of sales offices, representatives or distributors 23-May-2002 Page 5 of 5 |
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